CN114165281A - Method for filling biomass solid/liquid energy-producing source gas in underground space of mine - Google Patents
Method for filling biomass solid/liquid energy-producing source gas in underground space of mine Download PDFInfo
- Publication number
- CN114165281A CN114165281A CN202111506128.1A CN202111506128A CN114165281A CN 114165281 A CN114165281 A CN 114165281A CN 202111506128 A CN202111506128 A CN 202111506128A CN 114165281 A CN114165281 A CN 114165281A
- Authority
- CN
- China
- Prior art keywords
- mine
- underground space
- liquid
- underground
- biomass solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 65
- 239000002028 Biomass Substances 0.000 title claims abstract description 64
- 239000007787 solid Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000011049 filling Methods 0.000 title claims abstract description 28
- 239000003245 coal Substances 0.000 claims abstract description 36
- 239000002893 slag Substances 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000006731 degradation reaction Methods 0.000 claims abstract description 17
- 230000009471 action Effects 0.000 claims abstract description 13
- 230000015556 catabolic process Effects 0.000 claims abstract description 13
- 230000000813 microbial effect Effects 0.000 claims abstract description 9
- 238000000605 extraction Methods 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000002910 solid waste Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 240000000111 Saccharum officinarum Species 0.000 description 4
- 235000007201 Saccharum officinarum Nutrition 0.000 description 4
- 239000010902 straw Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 239000003818 cinder Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
- F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for filling biomass solid/liquid energy-producing source gas in an underground space of a mine, which comprises the following steps: firstly, a pipeline of an underground heat exchanger extends into an underground space of a mine, is connected with a heat energy accumulator in a closed loop mode and is injected with a heat medium, and then biomass solid/liquid is crushed and then is sent into the underground space of the mine; secondly, reacting the biomass solid/liquid with the residual coal slag under the degradation action of microbial flora to generate biogas containing methane, and exchanging heat between a heat medium in a pipeline of the underground heat exchanger and the heat generated by the reaction; and thirdly, extracting the biogas to the ground. According to the invention, through the degradation reaction of the biomass solid/liquid filled in the underground space of the mine and the residual coal slag together and the recovery of the reaction heat by adopting the underground heat exchanger, a complete process of preparing the energy source gas system by filling the underground space of the mine with the biomass solid/liquid is formed, the effective utilization of the residual coal slag and the biomass solid/liquid is realized, the comprehensive utilization efficiency of resources and energy is improved, the new energy of gas is obtained, and the cost is saved.
Description
Technical Field
The invention belongs to the technical field of biomass solid waste liquid energy-producing source gas, and particularly relates to a method for filling biomass solid/liquid energy-producing source gas in an underground space of a mine.
Background
Coal is a main energy source in China, is an indispensable material basis for national economy and social development, and is a strategic guarantee of energy safety in China. However, coal resources are increasingly mined in China, disasters such as surface subsidence caused by large-area mine goafs are more frequent, underground space is difficult to recycle after being laid, broken coal slag left underground not only causes energy waste, but also causes serious threats to coal mine safety due to oxidation spontaneous combustion. Therefore, a clean, efficient, safe and diversified modern energy system is established as soon as possible, and the adjustment and optimization of an energy supply structure is urgent. The gas energy refers to gaseous combustible substances which can generate heat energy or power under the economic and social conditions, and the development of high-quality, high-efficiency and clean gas energy can become an important solution for effectively relieving the energy supply safety, realizing the diversified development of an energy system, reducing the environmental protection pressure, improving the comprehensive utilization efficiency of the energy, ensuring the national energy safety and other multiple tests. The new energy of gas can be effectively developed, so that the potential safety hazard of the utilization of the new energy can be reduced, and the pressure on the exploitation of coal resources can be relieved.
At present, the underground space of a mine goaf is mainly filled with crushed stones, soil and paste, but the serious problems of lack of fillers, low utilization rate, high cost and the like still exist. Meanwhile, biomass solid (liquid) such as sugarcane, wood chips, straws and paper chips has huge resource recovery amount, and can cause serious pollution problem when being burnt. Based on the extensive existence of methanogens in coal seams, the reaction mechanism of methane generation by microbial degradation in coal and biomass solid (liquid) is very similar. Therefore, aiming at the limitations and challenges of the existing gas energy development and efficient clean utilization technology, the mine underground space and the coal cinder left after mining are reused, and the biomass solid waste liquid is collected and then secondarily utilized, so that a novel technical method for filling the mine underground space with biomass solid (liquid) energy-producing source gas is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for filling biomass solid/liquid in an underground space of a mine to produce source gas aiming at the defects of the prior art. According to the method, the biomass solid/liquid and the residual coal slag are filled into the underground space of the mine to carry out degradation reaction together, and the underground heat exchanger is adopted for reaction heat recovery, so that a complete process of filling the underground space of the mine with the biomass solid/liquid to prepare the energy source gas system is formed, the residual coal slag and the biomass solid/liquid are effectively utilized, the comprehensive utilization efficiency of resources and energy is improved, and meanwhile, new gas energy is obtained.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a method for filling biomass solid/liquid energy production source gas in underground space of a mine is characterized by comprising the following steps:
step one, arranging a supporting coal pillar in an underground space of a mine, arranging an underground heat exchanger connected with a heat energy accumulator on the ground, extending a pipeline of the underground heat exchanger into the underground space of the mine and connecting the underground heat exchanger with the heat energy accumulator in a closed loop manner, injecting a thermal medium into the pipeline of the underground heat exchanger, crushing solid/liquid of biomass, and then sending the biomass into the underground space of the mine through a channel of an injection well;
step two, mixing the pulverized biomass solid/liquid and residual coal cinder fed into the underground space of the mine, reacting under the degradation action of microbial flora to generate biogas containing methane, and simultaneously carrying out heat exchange between a heat medium flowing in a pipeline of the underground heat exchanger and reaction generated heat and refluxing to a heat energy accumulator;
pumping the biogas generated in the step three to the ground through a pumping well under the action of a pumping pump, and then sending the biogas into a gas storage tank;
the method comprises the steps of filling biomass solid/liquid production reaction to generate biogas and recycling reaction heat, wherein firstly, a high-strength supporting coal pillar is arranged in an underground space of a mine to support an upper rock mass of the underground space of the mine, so as to provide a stable space for a subsequent degradation process, meanwhile, an underground heat exchanger connected with a heat energy accumulator is arranged on the ground, a pipeline of the underground heat exchanger extends into the underground space of the mine and is connected with the heat energy accumulator in a closed loop manner, and a heat medium is injected into the pipeline of the underground heat exchanger to form a complete heat recovery system, namely, the inside of the underground space of the mine is connected with the heat recovery system; then crushing biomass solid/liquid, which is usually sugarcane residue and sugarcane liquid, straws and straw juice, wood chips, paper scraps and the like, and domestic wastewater by using a stirrer, sending the crushed biomass solid/liquid into the underground space of the mine through a channel of an injection well to be mixed with residual coal slag, reacting under the degradation action of microbial flora in the residual coal slag to generate biogas containing methane, extracting and storing the biogas, namely generating biogas through filling biomass solid/liquid to generate reaction, realizing effective utilization of the residual coal slag and the biomass solid/liquid, obtaining new gas energy, and directly transporting the generated reaction residual solid to the ground surface through a roadway arranged at the underground space of the mine; meanwhile, a large amount of heat is generated by the reaction under the degradation action and released into the underground space of the mine, when a heat medium flowing in the pipeline of the underground heat exchanger flows into the underground space of the mine and exchanges heat with the heat generated by the reaction, normal-temperature water is generally adopted as the heat medium, the temperature of the heat medium rises after heat exchange, and the heat medium flows back and is gathered into a heat energy accumulator for further utilization of heat or directly outputs high-temperature water for life use, so that the recycling of the reaction heat is realized.
The method for filling the biomass solid/liquid energy production source gas in the mine underground space is characterized in that in the first step, anti-seepage nets are distributed around the inside of the mine underground space. According to the invention, the seepage-proof nets are arranged around the inner part of the underground space of the mine, so that the pulverized biomass solid/liquid is concentrated and is fully mixed and reacted with the residual coal slag, the dispersion and even omission of the pulverized biomass solid/liquid are avoided, the reaction efficiency under the degradation action is improved, and the full utilization of the biomass solid/liquid and the residual coal slag is facilitated.
The method for filling the biomass solid/liquid energy-producing source gas in the underground space of the mine is characterized in that in the first step, a sealing door is arranged on an anti-seepage net at the bottom of the underground space of the mine. According to the invention, the sealing door is arranged on the anti-seepage net at the bottom of the underground space of the mine, so that residual products reacted under the degradation action can be conveniently discharged outwards through the sealing door and transported to the ground through the underground roadway arranged around the underground space of the mine.
The method for filling the biomass solid/liquid energy production source gas in the underground space of the mine is characterized in that a plurality of concentration sensors are arranged on the periphery of the anti-seepage net in the first step. According to the invention, the plurality of concentration sensors are arranged around the anti-seepage net, the concentration of biogas containing methane generated by the reaction of biomass solid/liquid inside the anti-seepage net and residual coal slag under the degradation action is detected in time, real-time monitoring is carried out, and when the concentration of the biogas reaches a preset value, the air pump is controlled to be started in time, and the biogas is extracted, output and stored.
The method for filling the biomass solid/liquid energy production source gas in the underground space of the mine is characterized in that a plurality of pressure sensors are arranged on the inner walls of the channels of the injection well and the extraction well in the step one. The invention is provided with a plurality of pressure sensors on the inner walls of the channels of the injection well and the extraction well, so as to monitor the pressure inside the underground space of the mine communicated with the injection well and the extraction well in real time, prevent the blowout accident caused by the overlarge pressure caused by the generation of biogas inside the underground space of the mine, and ensure the safe operation of the method.
In the process of reacting biomass solid/liquid with residual coal slag, the concentration in a reaction space is recorded in real time by a concentration sensor on an anti-seepage net of the underground space of the mine, when the concentration reaches the maximum value, the content of methane-containing biogas produced by the underground space of the mine is the highest, and at the moment, pressure data transmitted by pressure sensors in an injection well and an exhaust well are recorded. By recording the real-time data of concentration and pressure, the change relationship between the gas content of the underground space microbial flora degradation solid waste liquid energy-producing source and the injected biomass solid/liquid pressure is found out, and the optimal condition of the underground space energy-producing source (the optimal pressure of the injected biomass solid waste liquid) is further determined, so that the whole production procedure is optimized, and the underground space is enabled to generate more yield of energy gas through the microbial flora degradation solid waste liquid.
The method for filling the biomass solid/liquid energy production source gas in the underground space of the mine is characterized in that in the first step, temperature sensors are arranged in a water inlet pipeline and a water outlet pipeline which are connected with the underground heat exchanger and the heat energy accumulator. According to the invention, the temperature sensors are arranged in the water inlet pipeline and the water outlet pipeline which are connected with the heat energy accumulator in the underground heat exchanger, so that the temperature of the heat medium flowing into and out of the heat energy accumulator in the pipeline of the underground heat exchanger can be monitored in real time, and the reaction heat can be timely gathered in the heat energy accumulator for utilization.
The method for filling the biomass solid/liquid energy production source gas in the underground space of the mine is characterized in that a pressure reducing valve is arranged in a pipeline of the underground heat exchanger extending into the underground space of the mine in the first step. In the process of reacting biomass solid/liquid with residual coal slag under the degradation action, the pipeline of the underground heat exchanger extending into the underground space of the mine can exchange heat in the flow reaction heat release area.
The method for filling the biomass solid/liquid productivity source gas in the underground space of the mine is characterized in that in the third step, an air extraction valve is installed at the wellhead of the air extraction well, and a barometer is arranged between the air extraction well and the air extraction pump. According to the invention, the extraction pressure at the wellhead is adjusted by installing the extraction valve at the wellhead of the extraction well, and the extraction pressure is fed back and adjusted by monitoring the reading of the barometer in real time, so that the extraction rate is controlled.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the biomass solid/liquid and the residual coal slag are filled into the underground space of the mine to carry out degradation reaction together, and the underground heat exchanger is adopted for reaction heat recovery, so that a complete process of preparing the energy source gas system by filling the underground space of the mine with the biomass solid/liquid is formed, the effective utilization of the residual coal slag and the biomass solid/liquid is realized, the comprehensive utilization efficiency of resources and energy is improved, and meanwhile, new gas energy is obtained.
2. The method can better understand the change rule of methane gas generated by degrading the solid waste liquid by the microbial flora, find the optimal condition for generating gas energy sources such as coal bed gas and the like in the underground space of the mine, optimize the production procedure, relieve the energy safety problem and reduce the environmental protection pressure.
3. The invention realizes secondary clean utilization of biomass solid/liquid such as common and huge sugarcane residues, straws, wood chips and paper scraps in life, avoids combustion treatment of the traditional method, solves the pollution problem caused by combustion, and saves the raw material cost of energy-producing source gas, the filling cost of underground mine space and the treatment cost of the biomass solid/liquid.
4. According to the invention, the biomass solid/liquid is filled into the underground space of the mine to react with the residual coal slag to generate biogas energy, so that the problems of lack of fillers and low utilization rate are solved, the underground space of the mine is reused, and the danger of bottom surface collapse caused by a goaf in the underground space of the mine is degraded.
5. According to the invention, the biomass solid/liquid and residual coal slag are efficiently treated and utilized to obtain the new biogas energy, so that the coal mining and utilizing pressure is relieved, and a new idea is provided for the effective development of low-carbon clean energy.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic diagram of a solid/liquid biomass energy-producing source gas filled in an underground space of a mine according to the present invention.
Description of reference numerals:
1-an injection well; 2-a pressure sensor; 3-a concentration sensor;
4, supporting the coal pillar; 5, an anti-seepage net; 6-pressure reducing valve;
7-sealing the door; 8-residual coal slag; 9-biogas;
10-a temperature sensor; 11-downhole heat exchanger; 12-a thermal energy storage;
13-an extraction valve; 14-an extraction well; 15-barometer;
16-a suction pump; 17-air storage tank.
Detailed Description
Example 1
The method of the embodiment comprises the following steps:
step one, arranging a supporting coal pillar 4 in an underground space of a mine, arranging an underground heat exchanger 11 connected with a heat energy accumulator 12 on the ground, extending a pipeline of the underground heat exchanger 11 into the underground space of the mine and connecting the pipeline with the heat energy accumulator 12 in a closed loop manner, injecting a thermal medium into the pipeline of the underground heat exchanger 11, crushing solid/liquid of biomass, and then sending the biomass into the underground space of the mine through a channel of an injection well 1;
step two, mixing the crushed biomass solid/liquid sent into the underground space of the mine with residual coal slag, reacting under the degradation action of microbial flora to generate biogas 9 containing methane, exchanging heat between a heat medium flowing in a pipeline of the underground heat exchanger 11 and heat generated by the reaction, and refluxing to the heat energy accumulator 12;
step three, pumping the biogas 9 generated in the step three to the ground through a pumping well 14 under the action of a pumping pump 16, and then sending the biogas into a gas storage tank 17;
further, in this embodiment, the seepage control nets 5 are arranged around the inside of the underground space of the mine.
Further, in this embodiment, a sealing door 7 is provided on the anti-seepage net 5 at the bottom of the underground space of the mine.
Further, in this embodiment, a plurality of concentration sensors 3 are disposed around the impermeable mesh 5.
Further, in the present embodiment, a plurality of pressure sensors 2 are mounted on the inner walls of the passages of the injection well 1 and the extraction well 14.
Further, in this embodiment, the water inlet pipeline and the water outlet pipeline of the downhole heat exchanger 11 connected to the heat accumulator 12 are both provided with a temperature sensor 10.
Further, in the embodiment, a pressure reducing valve 6 is arranged in a pipeline of the downhole heat exchanger 11 extending into the underground space of the mine.
Further, in this embodiment, an air extraction valve 13 is installed at a wellhead of the air extraction well 14, and an air pressure gauge 15 is disposed between the air extraction well 14 and the air extraction pump 16.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the technical essence of the invention are still within the protection scope of the technical solution of the invention.
Claims (8)
1. A method for filling biomass solid/liquid energy production source gas in underground space of a mine is characterized by comprising the following steps:
step one, arranging a supporting coal pillar (4) in an underground space of a mine, arranging an underground heat exchanger (11) connected with a heat energy accumulator (12) on the ground, extending a pipeline of the underground heat exchanger (11) into the underground space of the mine and connecting the pipeline with the heat energy accumulator (12) in a closed loop manner, injecting a thermal medium into the pipeline of the underground heat exchanger (11), crushing solid/liquid of biomass, and then sending the biomass into the underground space of the mine through a channel of an injection well (1);
step two, mixing pulverized biomass solid/liquid and residual coal slag which are sent into the underground space of the mine, reacting under the degradation action of microbial flora to generate biogas (9) containing methane, exchanging heat between a heat medium flowing in a pipeline of an underground heat exchanger (11) and heat generated by the reaction, and refluxing to a heat energy accumulator (12);
and step three, pumping the biogas (9) generated in the step three to the ground through a pumping well (14) under the action of a pumping pump (16), and then sending the biogas into a gas storage tank (17).
2. The method for filling the mine underground space with the biomass solid/liquid energy production source gas according to claim 1, wherein in the first step, the impermeable nets (5) are arranged around the inside of the mine underground space.
3. The method for filling the mine underground space with the biomass solid/liquid energy-producing source gas according to claim 1, wherein in the first step, a sealing door (7) is arranged on an impermeable net (5) at the bottom of the mine underground space.
4. The method for filling the underground space of the mine with the biomass solid/liquid energy-producing source gas according to claim 1, wherein in the first step, a plurality of concentration sensors (3) are arranged around the impermeable net (5).
5. The method for filling the underground space of the mine with the biomass solid/liquid energy production source gas according to claim 1, wherein in the first step, a plurality of pressure sensors (2) are arranged on the inner walls of the channels of the injection well (1) and the extraction well (14).
6. The method for filling the mine underground space with the biomass solid/liquid energy production source gas according to claim 1, wherein in the first step, the water inlet pipeline and the water outlet pipeline of the underground heat exchanger (11) connected with the heat energy accumulator (12) are provided with temperature sensors (10).
7. The method for filling the mine underground space with the biomass solid/liquid energy production source gas according to claim 1, wherein in the first step, a pressure reducing valve (6) is arranged in a pipeline of the underground heat exchanger (11) extending into the mine underground space.
8. The method for filling the solid/liquid biomass energy production source gas in the underground space of the mine according to claim 1, wherein in the third step, an air suction valve (13) is installed at the mouth of the air suction well (14), and an air pressure gauge (15) is arranged between the air suction well (14) and an air suction pump (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111506128.1A CN114165281A (en) | 2021-12-10 | 2021-12-10 | Method for filling biomass solid/liquid energy-producing source gas in underground space of mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111506128.1A CN114165281A (en) | 2021-12-10 | 2021-12-10 | Method for filling biomass solid/liquid energy-producing source gas in underground space of mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114165281A true CN114165281A (en) | 2022-03-11 |
Family
ID=80485614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111506128.1A Pending CN114165281A (en) | 2021-12-10 | 2021-12-10 | Method for filling biomass solid/liquid energy-producing source gas in underground space of mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114165281A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044352A (en) * | 2022-12-20 | 2023-05-02 | 郑州大学 | Method for circularly and biochemically converting carbon dioxide and co-producing hot gas by depleted oil and gas reservoir |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420283A (en) * | 2015-12-18 | 2016-03-23 | 太原理工大学 | Method for filling abandoned roadway and preparing biomass energy sources by using garbage |
| CN106437837A (en) * | 2016-10-13 | 2017-02-22 | 安徽理工大学 | Method for filling mine goaf with straw compressed solid blocks |
| CN207227442U (en) * | 2017-08-01 | 2018-04-13 | 河南理工大学 | A kind of mine worked-out section fills straw biological gas production system |
| WO2018126573A1 (en) * | 2017-01-09 | 2018-07-12 | 中国矿业大学 | Method for extracting thermal energy of underground high temperature area of coal field fire zone |
-
2021
- 2021-12-10 CN CN202111506128.1A patent/CN114165281A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420283A (en) * | 2015-12-18 | 2016-03-23 | 太原理工大学 | Method for filling abandoned roadway and preparing biomass energy sources by using garbage |
| CN106437837A (en) * | 2016-10-13 | 2017-02-22 | 安徽理工大学 | Method for filling mine goaf with straw compressed solid blocks |
| WO2018126573A1 (en) * | 2017-01-09 | 2018-07-12 | 中国矿业大学 | Method for extracting thermal energy of underground high temperature area of coal field fire zone |
| CN207227442U (en) * | 2017-08-01 | 2018-04-13 | 河南理工大学 | A kind of mine worked-out section fills straw biological gas production system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044352A (en) * | 2022-12-20 | 2023-05-02 | 郑州大学 | Method for circularly and biochemically converting carbon dioxide and co-producing hot gas by depleted oil and gas reservoir |
| CN116044352B (en) * | 2022-12-20 | 2023-12-01 | 郑州大学 | Method for circularly and biochemically converting carbon dioxide and co-producing hot gas by depleted oil and gas reservoir |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112483062B (en) | Underground interlayer type coal in-situ gasification mining method and system | |
| CN102287177A (en) | Method for gasifying underground coal | |
| CN106437653B (en) | A kind of hydrate exploitation and the carbon dioxide sequestration integrated processes of note quick lime and carbon dioxide process | |
| CN114165281A (en) | Method for filling biomass solid/liquid energy-producing source gas in underground space of mine | |
| CN114506817B (en) | Gas reservoir in-situ conversion hydrogen production method using geothermal energy for auxiliary heating | |
| CN204175276U (en) | A kind of underground coal gasification(UCG) analogue experiment installation | |
| CA2937608A1 (en) | Subterranean gasification system and method | |
| US11965419B2 (en) | Multi-energy complementary system for co-associated abandoned mine and use method | |
| CA2831902C (en) | Biomass-enhanced natural gas from coal formations | |
| CN114876437A (en) | Coal bed in-situ hydrogen production method utilizing supercritical water | |
| CN116752194B (en) | In-situ efficient electrolytic exploitation device and method for bauxite under middle-shallow coal | |
| CN113338934A (en) | Deep coal fluidization exploitation in-situ gasification device | |
| CN112761613A (en) | Deep coal in-situ pyrolysis mining and utilizing process | |
| CN113863910B (en) | Underground in-situ gasification and heat energy co-extraction integrated method for coal | |
| CN204783094U (en) | Harmless liquid nitrogen system that administers coal field fire district | |
| CN107177497B (en) | Mine goaf filling straw biological gas production system and gas production process thereof | |
| CN104962476A (en) | Coal-mine-goaf-based carbon dioxide underground sealing method and system | |
| CN210964557U (en) | Device for treating carbon dioxide in industrial waste gas based on coal mine goaf | |
| CN211497499U (en) | Comprehensive utilization system of oil shale with biomass | |
| CN114183115A (en) | Efficient natural gas hydrate exploitation system and method | |
| CN117684918B (en) | Method and device for extracting gas by utilizing coal seam waste heat in sectional advancing type heat injection mode | |
| CN105462621B (en) | CO2/H2The common gasification system of coal dust joint biogas residue under O steam atmosphere | |
| CN204356141U (en) | For the anaerobic reaction device of changing food waste process | |
| CN117052366B (en) | Method for in-situ exploitation and energy efficient utilization of deep organic rock ore layer | |
| CN114196709A (en) | Method for decomposing residual carbon based on methane bacteria in coal gasification underground space |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |